I beleive ego death, associated with LSD, DMT, Salvia, Mushrooms etc. Is gaining a higher state of consiousness. Which to some people lasts the rests of their life's to other is just a memory. This book: http://www.erowid.org/library/books_online...xperience.shtml is a very good read, in any of those looking for a higher state of consiousness. It tells you how to acheive ego death, through drugs or meditiation. You could possibly try this technique in a lucid dream, it may just very well work.